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Annotation of qemu/hw/tc6393xb_template.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Toshiba TC6393XB I/O Controller.
        !             3:  * Found in Sharp Zaurus SL-6000 (tosa) or some
        !             4:  * Toshiba e-Series PDAs.
        !             5:  *
        !             6:  * FB support code. Based on G364 fb emulator
        !             7:  *
        !             8:  * Copyright (c) 2007 Herv� Poussineau
        !             9:  *
        !            10:  * This program is free software; you can redistribute it and/or
        !            11:  * modify it under the terms of the GNU General Public License as
        !            12:  * published by the Free Software Foundation; either version 2 of
        !            13:  * the License, or (at your option) any later version.
        !            14:  *
        !            15:  * This program is distributed in the hope that it will be useful,
        !            16:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            17:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            18:  * GNU General Public License for more details.
        !            19:  *
        !            20:  * You should have received a copy of the GNU General Public License along
        !            21:  * with this program; if not, write to the Free Software Foundation, Inc.,
        !            22:  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
        !            23:  */
        !            24: 
        !            25: #if BITS == 8
        !            26: # define SET_PIXEL(addr, color)        *(uint8_t*)addr = color;
        !            27: #elif BITS == 15 || BITS == 16
        !            28: # define SET_PIXEL(addr, color)        *(uint16_t*)addr = color;
        !            29: #elif BITS == 24
        !            30: # define SET_PIXEL(addr, color)        \
        !            31:     addr[0] = color; addr[1] = (color) >> 8; addr[2] = (color) >> 16;
        !            32: #elif BITS == 32
        !            33: # define SET_PIXEL(addr, color)        *(uint32_t*)addr = color;
        !            34: #else
        !            35: # error unknown bit depth
        !            36: #endif
        !            37: 
        !            38: 
        !            39: static void glue(tc6393xb_draw_graphic, BITS)(struct tc6393xb_s *s)
        !            40: {
        !            41:     int i;
        !            42:     int w_display;
        !            43:     uint16_t *data_buffer;
        !            44:     uint8_t *data_display;
        !            45: 
        !            46:     data_buffer = (uint16_t*)(phys_ram_base + s->vram_addr);
        !            47:     w_display = s->scr_width * BITS / 8;
        !            48:     data_display = ds_get_data(s->ds);
        !            49:     for(i = 0; i < s->scr_height; i++) {
        !            50: #if (BITS == 16)
        !            51:         memcpy(data_display, data_buffer, s->scr_width * 2);
        !            52:         data_buffer += s->scr_width;
        !            53:         data_display += ds_get_linesize(s->ds);
        !            54: #else
        !            55:         int j;
        !            56:         for (j = 0; j < s->scr_width; j++, data_display += BITS / 8, data_buffer++) {
        !            57:             uint16_t color = *data_buffer;
        !            58:             uint32_t dest_color = glue(rgb_to_pixel, BITS)(
        !            59:                            ((color & 0xf800) * 0x108) >> 11,
        !            60:                            ((color & 0x7e0) * 0x41) >> 9,
        !            61:                            ((color & 0x1f) * 0x21) >> 2
        !            62:                            );
        !            63:             SET_PIXEL(data_display, dest_color);
        !            64:         }
        !            65: #endif
        !            66:     }
        !            67: }
        !            68: 
        !            69: #undef BITS
        !            70: #undef SET_PIXEL

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